Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Chemistry > Topic 2 - Bonding, Structure and Propeties of Matter > Flashcards

Topic 2 - Bonding, Structure and Propeties of Matter Flashcards

You may prefer our related Brainscape-certified flashcards:
AP® Chemistry flashcards Periodic Table flashcards Chemistry 101 flashcards Organic Chemistry 101 flashcards
1
Q

Why do ionic lattice need to a lot of energy to break their bonds?

A

They have a strong electrostatic attraction

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Why do ionic compounds have a high melting and boiling points?

A

They have a strong electrostatic attractions

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What can ionic compounds do when they are melted or dissolved in water?

A

They can conduct electricity

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Why can ionic compounds conduct electricity if they’re melted or dissolved in water?

A

Because the charged ions are free to move

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What do small molecules contain?

A

Strong covalent bonds

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What is the problem with small molecules?

A

They have weak intermolecular forces

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What are small molecules usually what at room temperature?

A

Gases or liquids

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Why do small molecules have low melting and boiling points?

A

Because it requires little energy to overcome the intermolecular forces

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What does a big molecule have that c small molecules don’t?

A

Strong intermolecular forces

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What do bigger molecules force have because of their strong intermolecular forces?

A

High melting point
High boiling point

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What are polymers linked by?

A

Strong covalent bonds

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What are polymers usually what at room temperature?

A

Solid

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Why do polymers not conduct electricity?

A

Because the molecules have no overall charge

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What does a giant covalent bond take to overcome it?

A

Energy

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

A lot of energy to overcome the covalent bonds means that they have what?

A

Very high melting and boiling points

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Examples of giant covalent structures?

A

Silicon dioxide
Diamond
Graphite

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

List the 3 states of matter

A

Solid
Liquid
Gas

18
Q

What happens when a solid material is heated?

A

It gains energy

19
Q

What happens when a solid gains energy?

A

It vibrates more

20
Q

What are diamonds giant covalent structures made out of?

A

Carbon atoms

21
Q

Why are diamonds hard?

A

They have strong covalent bonds

22
Q

Do diamonds have a high or low melting/boiling point?

A

High

23
Q

What are Graphites giant covalent bonds made up of?

A

Carbon atoms

24
Q

What giant covalent bond is arranged in layers of hexagonal rings?

A

Graphite

25
Q

Why can layers of graphite easily slide over each other?

A

They have weak intermolecular forces

26
Q

What does delocalised electron mean?

A

The electron can be Free to move around

27
Q

Why is graphite a good conductor of electricity?

A

It has delocalised electrons

28
Q

What is Graphene ?

A

A single layer of graphite

29
Q

Graphene has delocalised electrons so it a good at what?

A

Good conductor of heat and electricity

30
Q

What are fullerenes?

A

A covalent structures with hollow shapes

31
Q

Fullerene structure is based of what?

A

Rings of carbon atoms

32
Q

Fullerenes and graphite are similar why?

A

That have delocalised electrons

33
Q

Delocalised electrons in fullerenes make them good at what?

A

Good conductors of heat and electricity?

34
Q

Why are fullerenes good catalyst?

A

They have a high surface area to volume ratio

35
Q

What are carbon nanotubes?

A

Fullerenes with a cylindrical shape

36
Q

Why are nanotubes resistant to being stretched?

A

Because they have a high tensile strength

37
Q

What does ionic bonding join?

A

Metals and non-metals

38
Q

What does covalent bonding join?

A

Non-metals together

39
Q

What does metallic bonding join?

A

Metals together

40
Q

What is an ion?

A

A charged atom or molecule

41
Q

What does positive ions have more or what than electrons?

A

Protons

42
Q

Negative ions have more of what?

A

Electrons

Chemistry (5 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions